[alsa-devel] Direct use of the DMA buffer?

Hello,

Please excuse my ignorance, but is it possible for an application to directly use/output to the DMA buffer allocated by the kernel in hw_params? Something like using the actual DMA buffer in the snd_pcm_writei function, without copying the data in alsa-lib/driver PCM midle layer (?), just managing the pointers.

Only a theoretical question though, no plans on my side :)

Thanks a lot for even a short No :-)

Best regards,

Pavel.